Cited by 969RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryRNA and protein synthesis mechanisms

Lipid-like materials for low-dose, in vivo gene silencing

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Love, Kevin T., Mahon, Kerry P., Levins, Christopher G., Whitehead, Kathryn A., Querbes, William, Dorkin, J. Robert, Qin, June, Cantley, William +12 more·2010·Proceedings of the National Academy of Sciences

Abstract

Significant effort has been applied to discover and develop vehicles which can guide small interfering RNAs (siRNA) through the many barriers guarding the interior of target cells. While studies have demonstrated the potential of gene silencing in vivo, improvements in delivery efficacy are required to fulfill the broadest potential of RNA interference therapeutics. Through the combinatorial synthesis and screening of a different class of materials, a formulation has been identified that enables siRNA-directed liver gene silencing in mice at doses below 0.01 mg/kg. This formulation was also shown to specifically inhibit expression of five hepatic genes simultaneously, after a single injection. The potential of this formulation was further validated in nonhuman primates, where high levels of knockdown of the clinically relevant gene transthyretin was observed at doses as low as 0.03 mg/kg. To our knowledge, this formulation facilitates gene silencing at orders-of-magnitude lower doses than required by any previously described siRNA liver delivery system.

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  • Considerable effort to reduce siRNA payload by developing different lipid formulations has led to a tenfold or even 100-fold reduction in the dose of siRNA administered to different models.

    “considerable effort has been made to reduce the siRNA payload by developing different lipid formulations for delivery, which has so far led to a tenfold or even 100-fold reduction in the dose of siRNA administered to different models77,78.”
  • All these lipid materials showed improved delivery efficiency compared with DLin-KC2-DMA LNPs.

    “All these lipid materials showed improved delivery efficiency as compared with DLin-KC2-DMA LNPs.[38, 64, 65]”

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Authors
Love, K. T., Mahon, K. P., Levins, C. G., Whitehead, K. A., Querbes, W., Dorkin, J. R., Qin, J., Cantley, W., Qin, L. L., Racie, T., Frank-Kamenetsky, M., Yip, K. N., Alvarez, R., Sah, D. W. Y., de Fougerolles, A., Fitzgerald, K., Koteliansky, V., Akinc, A., Langer, R., & Anderson, D. G.
Affiliations
  • Massachusetts Institute of Technology (US)
  • Koch Institute for Integrative Cancer Research At MIT (US)
  • Harvard University (US)
  • Alnylam Pharmaceuticals (United States) (US)
  • Alnylam Pharmaceuticals, Inc., 300 Third Street, Cambridge, MA 02142,
  • Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139,
Venue
Proceedings of the National Academy of Sciences
Published
2010-01-11
Volume
107
Issue
5
Pages
1864-1869
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2089150369
Cited by
969
References
34
Citations by year
2026: 45 · 2025: 67 · 2024: 75 · 2023: 65 · 2022: 59 · 2021: 68 · 2020: 62 · 2019: 48 · 2018: 42 · 2017: 45 · 2016: 66 · 2015: 53 · 2014: 67 · 2013: 54 · 2012: 77
FWCI
26.86
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Funders
  • Alnylam Pharmaceuticals
  • National Institutes of Health (4r37eb000244-34)
  • National Institute of Biomedical Imaging and Bioengineering (EB-000244, R01EB000244, R37-EB000244)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
siRNA delivery, RNA interference therapy, prealbumin
MeSH terms
Animals, Biocompatible Materials, Factor VII, HeLa Cells, Humans, Lipids, Macaca fascicularis, Mice, Inbred C57BL, Molecular Structure, Drug Delivery Systems, Gene Silencing, Hepatocytes, RNA Interference, RNA, Small Interfering, Mice

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